Abstract: Implementing on line editions of newspapers compels style guides used in the Spanish-speaking world to take into account the different ways of writing on the Internet. Thereby, they take from the texts dedicated to the analysis of such ways of writing some ways of representing a global reader, less trained, scattered and sensitive to ultimediality. Based on these features, style guides establish rules for on-line journalistic discourse, focusing on brevity, simplicity, clarity and the restriction of sense games. On the other side, since interactivity is not only a possibility offered by the medium but also a requirement of journalistic companies in order to reduce costs, they establish netiquette rules aiming to regulate the readers’ interventions. The following paper attempts to analyze these issues, wondering if those ways of reading and writing, spread by the style guides, might be influent, once they become dominant, upon the development of the intellectual activities of those preferring this kind of prose.